What should we plant as companion plants for trillium?
We are planting dozens of trillium on a SE facing gently sloping site shaded by oak trees, and will have some azaleas, rhodies, and mountain laurel scattered among them. My husband says we need something else to fill in until the trillium multiply and the bushes get larger.
In my book about native plantings for Michigan, companion plants for trillium are listed as blue phlox, Virginia bluebells, wild geraniums, and woodland ferns. Wouldn't these overwhelm the effect of the trillium blooms since they are taller? Any suggestions as to which of these might look/work the best, or for what else we could plant with the trillium that would not be invasive?